initial import

tests/transport_test.py

@@ -0,0 +1,74 @@
+# Copyright 2021-2022 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# -----------------------------------------------------------------------------
+# Imports
+# -----------------------------------------------------------------------------
+import random
+import os
+from bumble.transport.common import PacketParser
+
+
+# -----------------------------------------------------------------------------
+class Sink:
+    def __init__(self):
+        self.packets = []
+
+    def on_packet(self, packet):
+        self.packets.append(packet)
+
+
+# -----------------------------------------------------------------------------
+def test_parser():
+    sink1 = Sink()
+    parser1 = PacketParser(sink1)
+    sink2 = Sink()
+    parser2 = PacketParser(sink2)
+
+    for parser in [parser1, parser2]:
+        with open(os.path.join(os.path.dirname(__file__), 'hci_data_001.bin'), 'rb') as input:
+            while True:
+                n = random.randint(1, 9)
+                data = input.read(n)
+                if not data:
+                    break
+                parser.feed_data(data)
+
+    assert(sink1.packets == sink2.packets)
+
+
+# -----------------------------------------------------------------------------
+def test_parser_extensions():
+    sink = Sink()
+    parser = PacketParser(sink)
+
+    # Check that an exception is thrown for an unknown type
+    try:
+        parser.feed_data(bytes([0x77, 0x00, 0x02, 0x01, 0x02]))
+        exception_thrown = False
+    except ValueError:
+        exception_thrown = True
+
+    assert(exception_thrown)
+
+    # Now add a custom info
+    parser.extended_packet_info[0x77] = (1, 1, 'B')
+    parser.reset()
+    parser.feed_data(bytes([0x77, 0x00, 0x02, 0x01, 0x02]))
+    assert(len(sink.packets) == 1)
+
+
+# -----------------------------------------------------------------------------
+test_parser()
+test_parser_extensions()